🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS21738, with the network's IPv6 and DNSSEC adoption and its observed prefixes. An autonomous system is the routing identity of a hosting company or ISP. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.

🛰️ Upstream providers of AS21738

via ipbot.dk

Rozint announces 13 prefixes (7 IPv4, 6 IPv6) and reaches the internet through 7 upstream networks.

UpstreamNamePower
AS6939Hurricane Electric LLC
100.0%
AS32097WII - WholeSale Internet, Inc.
95.4%
AS1299TWELVE99 Arelion Sweden AB
7.4%
AS3257GTT-BACKBONE GTT Communications Inc.
1.9%
AS32621TCV-511 - Twin City VoIP, Inc.
0.5%
AS52025ParadoxNetworks Limited
0.1%
AS286KPN GTT Communications Inc.
0.0%

Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.

🔻 Networks using AS21738 as upstream

1 network
NetworkNameDomainsPower
AS6517LAKENETWORKS—
100.0%

Among the networks we hold ipbot.dk routing data for (the ones looked up on this site), so this is a sample of the AS's customers, not all of them.

Found 0 domains matching 21738
🔍
No results found in the database.
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